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2019 Volvo AWD cars can be upgraded to deliver more torque to rear wheels

Polestar upgrade software available for vehicles without a plug-in hybrid drivetrain

Volvo has announced a new software upgrade, developed by its Polestar division, which increases the torque distribution to the rear wheels of all-wheel drive vehicles built on the company’s Scalable Product Architecture (SPA) or Compact Modular Architecture (CMA).

The company claims by increasing the amount and frequency of torque going to the rear wheels it has come up with a “more engaging drive”, as well as improving steering turn-in, cornering control, and traction under acceleration.

For vehicles equipped with the Polestar software upgrade, the “optimised” all-wheel drive setup is used whenever the car is in the Dynamic driving mode or traction control is disengaged.

Polestar’s upgraded all-wheel drive software will be available for 2019 model year S90, V90, XC90, S60, V60, XC60 and XC40 models powered by a petrol or diesel engine, but without electric motor assistance.

The plug-in hybrid T6 Twin Engine and T8 Twin Engine drivetrains both feature a rear axle that’s powered exclusively by an electric motor. According to Volvo these variants already exhibit a rear-wheel bias, and “do not require further AWD optimisation”.